Window-light regulator.



N0.'a5o,zo1. l I yPATENTBD ABR. 16, 1901'.

H. ALRICH.'

WINDOW LIGHT REGULATOR.

APPLICATION FILED JAN.16.I1907. l A

3 SHEETS-SHEET 1.

No. :350;201. PATENTE A111016, 1007.

H; ALRIGH. WINDOW LIGHT RE0UL A-T0R.

APPLIOATION TILED JAN. 1B. 1907.

3 SHEETS-SHEET 3.

ath-ung? nu': Neill: Irren: co., wnsmuarou, b. V

UNITED STATES HENRY ALRIOI-I, OF EL PASO, TEXAS, ASSIGNOR OF ONE-HALFSTOCKMEYER, OF EL PASO COUNTY, TEXAS.

PATENT OFFICE.

To JoHN WINDOW-LIGHT REGULATOR.

Specification of Letters Patent.

ratenteol April 16, 1907.

Application filed January 16, 1907. Serial No. 352,510.

It has for an object to provide an improved device in which two shades,one dark and the other transparent, may be positioned so as to obtainany degree of ligl'it.

Other and further objects will appear in the following description andwill be more particularly pointed out in the appended claims.

In the drawings, Figure 1 is an elevation of a window with my inventionapplied thereto. Fig. 2 is a side view of the guide members of myinvention. Fig. 3 is a plan of the bracket-attaching member. Fig. 4 isadetail of 'the other bracket-attaching members. Fig. 5 is a perspectiveview of the spacing member for the guidevmember shown in Fig. 2. Fig. 6is a front view of the curtain-strin tightener and holder. Fig. 7 is avertica section of said tightener and holder.

Referring to the drawings, 1 and 2 indicate the side or guide members.The guide inember 1 comprises a rod secured at its upper and lower endsand held in spaced relation to the windowrame. The guide member 2 isformed of a pair of parallel bars 3, connected at their upper and theirlower ends by pieces 4 and held. in spaced relation between their endsby a U-shaped space 5. The opposed faces of the bars 3 are provided withrecesses 6, a recess on one bar being alined with a recess on anotherbar. 4

Slidable on the side or guide members 1 and 2- are bracket-supports 7and 3, respec tively. The bracket-support or attaching member 7 isformed of a block 9 of wood, to the opposite faces of which brackets areadapted to be secured, a guide-piece 10 being secured to the block,bored to receive lthe rod `1 and formed to permit a cable 11 to besecured thereto. The cable 11 passes upwardly and twice around a pulley12 on a shaft 13, journaled at the top ofthe windowbracket-support 3 bya rod 20.

frame in the brackets 14. From the pulley 12 the cable passes downwardlyto and around a pulley 15, located near the lower end ofi the rod 1, andthence upwardly to a tightening device, which in turn is connected tothe bracket-support 7, thus forming Lan endless operating means for thebracket-support. The tightening device comprises a pair of nuts 16,carrying eyes 17 and connected by an oppositely-threaded screw 13, whichis operated by arms 19,

Bracketsupport 7 is connected with Y Bracketsupport 3 is formed of awooden block 21, similar to block 9, to which the brackets are secured.To one side face oi this block is secured a plate 22, from the upper endof which extends an arm 23, which carries at its outer end a ring 24. Tothe ring 24 is secured one end of an operating-cable 25, which passesupwardly and twice about a pulley 26 on the shaft 13 and thencedownwardly and around a pulley 27 near the lower end of guide member 2.From pulley 27 cable 25 passes to a tightening device, which is of thesaine construction as the tightening device of cable 11.

The upper eye 17 of the tightening device isileXibly connected by links23 with two oppositely-disposed spring-arms 29. The free ends of thearms 29 are bifurcated, so as to receive in their bifurcation rollers30, which permit the arms to travel with only slight friction on theopposed face of the bars 3. The inner ends of the armsn 29 are integralwith a sleeve 31, which holds a pair ofguideplates 32 in spaced relationon opposite sides ofthe bars 3. The plates 32, sleeve 31, and a sleeve33, together with the rod 20, are held together by a single screw-bolt34.

Secured in the brackets on oneside of the bracket-supports 7 and 8 is aspring-roller of a dark shade 35, while secured on the other side is alight or transparent shade 36. The light shade is drawn upwardly, andthe dark shade is drawn downwardly. The shades are connected at theirfree edges to endless cables 37 and 38, respectively. The cables passabout rollers 39 and 40 at the top of the window-frame and also aboutswinging rollers 41 and 42 at the bottom of the window.- frame. Theswinging rollers 41 and 42 are mounted on the free ends of the arms 43and 44, the inner ends of the arms being pivoted to a plate 45, which issecured to the window- TOO frame at its ends and is spaced from theframe between its ends. The inner ends of the arms are provided witharms 46, which engage with spring 47 on plate 4.5, and thus hold thearms in any position. to which the latter may be moved. When the armsare horizontal, lthe cables may be removed. to raise or lower theshades, and when the arms are turned downwardly, with the cablesthereon, the shades are held against flapping or other movement.

Il" a very strong light is desired., the shadebrackets are lowered andthe light shade raised. If, on the other hand, a mild or weak light isdesired, the brackets are raised and the dark shade lowered. Mediumlight is s ecured by placing Vthe brackets midway of the window-frame,having the shades extending in o posite directions.

T e brackets are raised or lowered. by pulling on either one of theendless cables adjacent the guide members l and 2, motion beingtransmitted to the other member through the shaft 13. The ends of thearms ZQenter the recesses 6 in bars 3 and form means to lock thebracket-supports in their adjusted positions. erating endless cable ispulled tension is placed on cable 25 suiiicien-t to withrflraw thelocking-arms from the recesses 6.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. The combination with a pair of shaderollers, of means for raising andlowering the shade-rollers simultaneously, shades carried' by therollers, and a pair of endless cables for independently operating theshades, each connected to a shade, and rollers arranged at the top andthe bottom of a 'window and around which the endless cables pass.

2. A means for holding and stretching shade-operating cables,comprisiinT a plate, an arm pivoted to the plate, a roiIer on. the outerend of the arm, a cam on the inner end of the arm, and a spring actingon the cam.

3. The combination with a guide member Of course when either bracket op'posed vfaces o'l" which are recessed, a bracketoi'l a bracket-carryingmember and an endless cable for moving said bracket-carrying member onthe guide member, and a locking 5o means 'for the bracket-carryingmember, operated by the endless cable.

4. In a device of the class described, a

guide member formed oi two bars, the op- 55 carrying member movable onthe guide and having two spring-arms the ends of which are adapted toenter the recesses, and a cable lor operating the spring-arms and movingthe bracket-carrying member on the guide member.

5. In a device of the class described, a guide member formed of twobars, the opposed 'faces of which are recessed, a bracketcarrying membermovable on the guide and having two spring-arms, the ends of which areadapted to enter the recesses, and cable for operating the spring-armsand moving the bracket-carrying member on the guide member.

The combination with a bracket-carrying member, of a locking meanstherefor, and a controlling-cable for operating the locking means andmoving the bracket carrying member.

7. The combination of a pair of guide members, one of which is formed oftwo bars, the opposed faces of which are recessed, a pair of connectedbracket-carrying members moving on the guide members, a pair of springlocking-arms, carried by one of the bracketcarrying members, acontrolling-cable for each bracket-carrying member, one of said cablesbeing connected with the sprin locking-arms, and means connecting botcontrolling-cables to cause one to move the other.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. i

HENRY ALRICII.

Witnesses:

JAs. HY. MGKINNETT, PEYTON J. EDWARDS.

